Implement cross-chain wallet abstraction with unified balance management

[Smartdevs17]

Context

Users managing assets across Stellar and EVM chains need a unified wallet abstraction.

Current Limitation

Users must manage separate wallets for each chain.

Expected Outcome

• Unified balance view across chains
• Cross-chain asset transfer abstraction
• Single sign-on for multi-chain operations
• Chain-agnostic payment routing

Acceptance Criteria

• Unified balance display across Stellar and EVM
• Cross-chain transfer with automatic routing
• Single authentication for multi-chain operations
• Gas abstraction (pay gas in any supported token)
• Transaction history aggregation across chains
• Chain selection based on cost optimization
• Wallet connection management UI

Technical Scope

• backend/src/services/walletAggregation.ts - Wallet aggregation
• frontend/store/web3Store.ts - Web3 state management
• frontend/components/wallet/ - Wallet UI components
• packages/sdk/ - Wallet SDK

[acmvisuals1]

@acmvisuals1 has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

Hello Maintainer, i would like to work on this issue, please assign me.

ℹ️ Repo Maintainers: To accept this application, review their application or assign @acmvisuals1 to this issue.

[kurehkim334-lang]

@kurehkim334-lang has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

I would love to work on this issue!

ℹ️ Repo Maintainers: To accept this application, review their application or assign @kurehkim334-lang to this issue.

[drips-wave]

Congratulations, @kurehkim334-lang! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on July 30, 2026.

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